Hello There!
More so than in other places, it is safe to assume that banks would have high levels of security. There are so many different things that people keep in the bank, from money to jewelry… And if you were someone who kept your valuables locked up at a bank, you would want to know that they are secure.
We’re pretty sure that something like this wouldn’t happen today but can you imagine being the person who discovered this? The bank directors must have been greeted with quite the shock when this sewer worker popped his head out of the ground!